Stop-motion for looms.



W. J. LUTTON.

STOP MOTION FOR LOOMS.

APPLICATION FILED lULY 31. 1914.

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W. J. LUTTON.

STOP MOTION FOR LOOMS.

APPLlcATroN. man luLY s1. 19:4.

1,158,945. Patented Nov. 2, 1915.

2 SHEETS-SHEET 2.

WILLIAM J. BUTTON, CF PATERSON, NEW' JERSEY.

STOP-MOTIGN FOR LOOMS.

Specification of Letters Patent.

Patented Nov. 2, 1915.

Application filed .Tuly 31, 1914. Serial No. 854,298.

To @ZZ inkom t 'may concern.'

Be it known that l, WILLIAM J. LUTTON, a. citizen of the United States, and resident of Paterson, in the county of Passaic and State of N ew Jersey, have invented a new and useful Improvement inV Stop-Motions for Looms, of which the following is a specification.

My invention relates to a stop motion for looms, with the object in view yof providing means for overcoming jar on the loom and the objectionable mark across the goods being woven, resulting from such The stop motion at present in common use includes a dagger carried by the lay beam, which dagger strikes the frame about the center, thereby causing they beam to spring more or less. The shock also causes the other mechanism, such as the take-up mechanism and warp beam, to move forward which must be accounted for before' starting up. The' weaver commonly lets back two or three teeth of the roll to accomplish this. The shock given to the lay beam is often so great asto break the frame and other castings of the machine which cannot be replaced without loss of time and considerable expense. If the machine ;is run at a highspeed, the shock will be increased and this has induced the weaver to run at a comparatively low speed, say one hundred and twenty picks to the minute. In the device forming the subject-matter of the present application, the jar is first ab` sorbed by a heavy spring `and then by a. leather and rubber bufer from whence the shock is transferred to the cast iron ear located upon oscillating arms upon which the lay beam is secured. The lay beam is oscillated by the pitmen which are connected to the ears.

four to two hundred and four picks per.

minute.

In the accompanying drawings, Figure l is a view in side elevation of so much of a loom as will be sufficient to show the presentv invention in its relation to the parts of the loom which coact therewith. Fig. 2 is an enlarged top plan partly in section. Fig. 3 is a view in side elevation partly in seclt willV therefore follow that any shock will be delivered to the beamv tion, showing the parts in the positions which theyoccupy when the stop motion is m action to stop the loom, and Fig. 4: is a similar view showing the position which'the partsV assume when thel loom is working normally. Y

The loom frame is denoted by l, the crank shaft for driving the pitmen, by 2,the pitlnen by 3 and 4, the lay beamby 5 and the snuttle in position in its box, see Fig. 4, by 6.

The brake band 7, see Fig. l, engaging a brake wheel 8, is drawn4 in a direction to put on brakes, by means of a spring 9, whenever the rod l0 is allowed to move to thel right, as shown in Fig. l, by the release of' the throw-oli" lever ll, pivoted at l2, in a part of the frame and held normally in the position shown in Fig. 4:', to releasey the brake band by means of a latch 13y operated by a stop rod 14. f

The above parts have been vrecited without elaboration as they form no part of my present invention except in so far as they coact with the stop motion proper. An arm l5 is secured to the ear l5* on the beam 5, the same ear to which the pitman 4 is secured, and extendingk along the pitman l ina direction away from the lay beam 5 and carrying upon the side of its free end a tilting dog 1G pivoted to the arm l5, at 17. The tilting movement of the dog lis` limited by means of an elongated slot 18, through which a pin 19 extends, the pin lbeing set in the arm l5. he dog l'is rocked by means of a. rodV 2O which passes in proximity to a lug 2l on the dog and is provided with a collar 22 located between the lug 2l and an up 1ight extension of the dog, the said rod 20having its opposite end engaged in limited slidingy contact with a tube 23, a spring 2t surrounding the rod 2O being located between the end of thetube 23 and branch 28* in position to engage a sliding block 29 which projects into the shuttle box 30, and which, together with the arm 2'7, is pressed normally into the position shown in Fig. 3, by means of a bar spring 27:", and which is crowded back, as shown in Fig. 4,

4, itsnose will be free/t'o'slide over the topj 0f a swinging arm 31, fulcrumed at 32, tofV a fixed portion of the frame l.V Alfs7hen, however, the dog'l is allowed to drop, as shown in Fig. 3, whentheshuttle 6 is not present in its boX,thelnose of the dog 16 will bein a position to engage apnotch 33 in the swinging arm 31, and cause the latter andthe parts' connected therewith to move tov `'the right as the drawing Vis held. .f

Thearm 31 vhas connected therewiththe stop rod l4rfor releasing the latch 13 `hereinabove referred to, and allowingthe throw.

off lever 1,1 to swing intoposition to put on the brake.,V The said arm 31` also has con- 1 nected therewith a spring 34, one end of said spring, lin the present instance being -connected-by means of a thumb nut 35, with a` portion of the loom frame andthe opposite end connected by a' link 36 with the arm 3l. The tension of the spring `34 is exertedlin ya ydirection to hold the arin 3l swung vto the left with the'stop rod 14 out of position to release the latch.v 13, thesaid arm in this 'position .resting yagainst a Y leather-facedvstop 37.- When the said armV 3l is pushed forward by the 'tilting dog 16,

as shown in Fig. 3, to eect a stopping of the loom, its forward movement will be arrested by a stop 38,l thegfaceof said stop 38 being provided with a suitable resilientl material, in the present instance, a case of;

leather 39 on a rubber layer 40.

In' operation, when forv any cause the` shuttle 6 fails .to set itself in the boX 30,; the arm 27. will be rocked into the positionl shown in Fig. 3, bymeans of the spring 24,

Y andthe dog 16 will be allowed to drop into the'position shown in Fig. 3, withits nose inposition to engage the upper end of the Vswinging arm 31,7 as the pitman 4 moves the lay beam 5 to the right.` This will force the arm 31 to the right against .the tension of the spring 34, andl against theyielding face on the stop 38 at the same time moving thestop rod 14 to theright, releasingy the latch 13 and permitting the lever 11 to'rocl into-position to operate'` the clutch 4l, see Fig. .1, and also to permit the spring 9 to act-upon theV :part 42 to which the brake band 7 is attached, to put on the brake and hence properly stop the loom asy the clutch is released. .Y

The shock of the impact of the dog Copies of Vthispatent may be obtained for five cents each, by addressing the Commssicner of Patents,

Y Witnesses i against the Varm 3l will beat first modied by the'springz34, and subsequently by the yielding face offthe Ystop 38,- and-v will be l transferred thence to they point'where the 'arm 15 connects with thepitmanv4, where the jarring eifectuponlthe beam v5. will be least.

:The deviceas above constructed is simple, Y "i i occupies no valuable space, while the spring used forY cushioning/,serves to draw'f the,

. mechanism back to the position Vfor `starting up, therebveliminating the operation .of letting baclr'thetakeaip roll. i ,Y -While I have shown the stop .motion con-v nectedVY withv one of the Vpitmen, itis to Vbe Y understood thatthis mayjbe duplicated with'A respect tothe otherpitmamif so desired. 1 What I claiinis: -v ggf 'f I Y 1.4The combination withA the flay; beam,

-shuttle,7throw'off lever, and Vmeans for oper,-

ating the layv beam, of a tilting dog mounted Y to move withthelay beam 'and located backV fronti-he lay'beam, a springjactuated rockvingarm under the control of thefshuttle; aV yieldingV connection betweenv said Yrocking,

arm and tilting dog, a swinging arm,1-a. stop rod connected'withrthe'arm for 'releasingtthe throw-off` lever, and a spring connected .fwitli f the swinging arm for receivingfthefiinpact n of the dogagainst'the vibrating arm.. Y 2. The combination -withthe'lay beam,

shuttle, throw-off leveriand pitinan-for oper-- f I I l ating the lily beam., 0f narm connectedY to the lay beam at thepoint where adpitm'a'n-v 1" is connected thereto, atilting `dogcarried said tilting dog, means underQthe Ycontrol of.: the shuttle for rocking nsaid shaft andftilting Y dog, anda 'yielding cushion in coperative relation to thesaid dog and..throw-offl lever.

3.*The' combination with the laybeami,V

shuttle, throw-off leverand'means for oper-i. f Y Y ating the lay beam,` off-amovablepart in position to be voperated bythe shuttle, a'rti'lt; ing dog in'position to Vloe-operated by SaidHV movable part, as winging'arm in copera-r iofi'V Y tive relation Vtothe tiltingy dog and' throwf 1 ,Offj lever, -a 'Spring 'n ndngrlto draw the. i,

swinging arm in a direction against impact?.`

ofthe tilting dog and a yielding, faced stop A in,position to" arrest theinovement ofgthei'f -L- swinging armin the opposite direction.y e,` ,i 1

Yln testimony, that Lclaimthe foregoing wiLLiAivr J.. IQUTTON.Y .Y i

of July, "17914;

THOMAS W. RANDALL, HELEN HAENIGHEN.

Washington, I). C. 

